{
  "document": {
    "acknowledgments": [
      {
        "summary": "This vulnerability was found during the resolution of a Cisco TAC support case."
      }
    ],
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "notes": [
      {
        "category": "summary",
        "text": "A vulnerability in the XCP Router service of the Cisco Unified Communications Manager IM \u0026 Presence Service (CUCM IM\u0026P) and the Cisco TelePresence Video Communication Server (VCS) and Expressway could allow an unauthenticated, remote attacker to cause a temporary service outage for all IM\u0026P users, resulting in a denial of service (DoS) condition.\r\n\r\nThe vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a malicious IPv4 or IPv6 packet to an affected device on TCP port 7400. An exploit could allow the attacker to overread a buffer, resulting in a crash and restart of the XCP Router service.\r\n\r\n\r\nCisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.\r\n\r\nThis advisory is available at the following link:\r\nhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180815-ucmimps-dos [\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180815-ucmimps-dos\"]",
        "title": "Summary"
      },
      {
        "category": "general",
        "text": "This vulnerability affects all releases of the following Cisco products  prior to their respective first fixed release:\r\n\r\nCisco Unified Communications Manager IM \u0026 Presence Service\r\nCisco TelePresence Video Communication Server (VCS) and Expressway with Unified Communications mode set to Mobile and Remote Access\r\n\r\nIdentifying the Unified Communications Manager IM \u0026 Presence Service Version\r\n\r\nTo determine whether a vulnerable version of the Cisco Unified Communications Manager IM \u0026 Presence Service is running on a device, administrators can use the show version active command in the command-line interface (CLI) for the device.\r\n\r\nThe following example shows the output from a device that is running Cisco Unified Communications Manager IM \u0026 Presence Service version 11.5(1):\r\n\r\n\r\nadmin: show version active\r\nActive Master Version: 11.5.1.10000-4\r\nActive Version Installed Software Options:\r\nNo Installed Software Options Found.\r\n\r\nIdentifying the Cisco TelePresence VCS and Expressway Version\r\n\r\nAdministrators can log in to the web-based GUI of Cisco TelePresence VCS and Expressway and view the current version in the lower-right corner in the Version field. Alternatively, administrators can view the Software version field by navigating to Status \u003e System \u003e Information.\r\n\r\n\r\nIdentifying the Cisco TelePresence VCS and Expressway Unified Communications mode\r\n\r\nTo identify the current Unified Communications mode on Cisco TelePresence VCS and Expressway, administrators can log in to the web-based GUI of the system and look for the current setting of the Unified Communications mode option under Configuration \u003e Unified Communications \u003e Configuration.",
        "title": "Vulnerable Products"
      },
      {
        "category": "general",
        "text": "Only products listed in the Vulnerable Products [\"#vp\"] section of this advisory are known to be affected by this vulnerability.\r\n\r\nCisco has confirmed that this vulnerability does not affect Cisco WebEx Messenger Service.",
        "title": "Products Confirmed Not Vulnerable"
      },
      {
        "category": "general",
        "text": "There are no workarounds that address this vulnerability.",
        "title": "Workarounds"
      },
      {
        "category": "general",
        "text": "Cisco has released free software updates that address the vulnerability described in this advisory. Customers may only install and expect support for software versions and feature sets for which they have purchased a license. By installing, downloading, accessing, or otherwise using such software upgrades, customers agree to follow the terms of the Cisco software license:\r\nhttps://www.cisco.com/c/en/us/products/end-user-license-agreement.html [\"https://www.cisco.com/c/en/us/products/end-user-license-agreement.html\"]\r\n\r\nAdditionally, customers may only download software for which they have a valid license, procured from Cisco directly, or through a Cisco authorized reseller or partner. In most cases this will be a maintenance upgrade to software that was previously purchased. Free security software updates do not entitle customers to a new software license, additional software feature sets, or major revision upgrades.\r\n\r\nWhen considering software upgrades, customers are advised to regularly consult the advisories for Cisco products, which are available from the Cisco Security Advisories and Alerts page [\"https://www.cisco.com/go/psirt\"], to determine exposure and a complete upgrade solution.\r\n\r\nIn all cases, customers should ensure that the devices to be upgraded contain sufficient memory and confirm that current hardware and software configurations will continue to be supported properly by the new release. If the information is not clear, customers are advised to contact the Cisco Technical Assistance Center (TAC) or their contracted maintenance providers.\r\n\r\nCustomers Without Service Contracts\r\n\r\nCustomers who purchase directly from Cisco but do not hold a Cisco service contract and customers who make purchases through third-party vendors but are unsuccessful in obtaining fixed software through their point of sale should obtain upgrades by contacting the Cisco TAC:\r\nhttps://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html [\"https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html\"]\r\n\r\nCustomers should have the product serial number available and be prepared to provide the URL of this advisory as evidence of entitlement to a free upgrade.\r\n\r\nFixed Releases\r\n\r\nCustomers should upgrade to an appropriate release as indicated in the following tables:\r\n\r\nCisco Unified Communications Manager IM \u0026 Presence Service\r\n                                Cisco CUCM IM\u0026P Service Major Release\r\n              First Fixed Release\r\n                                              10.5(1) and earlier\r\n              Migrate to 11.5(1)SU4\r\n                                  10.5(2)              10.5(2)SU (Future release)\r\n                                  11.0(1)              Migrate to 11.5(1)SU4\r\n                                  11.5(1)              11.5(1)SU4                                  12.0(1)              12.0.1.21000-31\r\n\r\n1 This release is not publicly available on Cisco.com. Please contact Cisco TAC if you need this release.\r\n\r\n  Cisco TelePresence Video Communication Server (VCS) and Expressway\r\n                                Cisco TelePresence VCS and Expressway Major Release\r\n              First Fixed Release\r\n                                              X7 and earlier\r\n              Migrate to X8.11\r\n                                  X8              X8.11",
        "title": "Fixed Software"
      },
      {
        "category": "general",
        "text": "To learn about Cisco security vulnerability disclosure policies and publications, see the Security Vulnerability Policy [\"https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html\"]. This document also contains instructions for obtaining fixed software and receiving security vulnerability information from Cisco.",
        "title": "Vulnerability Policy"
      },
      {
        "category": "general",
        "text": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.",
        "title": "Exploitation and Public Announcements"
      },
      {
        "category": "general",
        "text": "This vulnerability was found during the resolution of a Cisco TAC support case.",
        "title": "Source"
      },
      {
        "category": "legal_disclaimer",
        "text": "THIS DOCUMENT IS PROVIDED ON AN \"AS IS\" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS DOCUMENT AT ANY TIME.\r\n\r\nA standalone copy or paraphrase of the text of this document that omits the distribution URL is an uncontrolled copy and may lack important information or contain factual errors. The information in this document is intended for end users of Cisco products.",
        "title": "Legal Disclaimer"
      }
    ],
    "publisher": {
      "category": "vendor",
      "contact_details": "Emergency Support:\r\n+1 877 228 7302 (toll-free within North America)\r\n+1 408 525 6532 (International direct-dial)\r\nNon-emergency Support:\r\nEmail: psirt@cisco.com\r\nSupport requests that are received via e-mail are typically acknowledged within 48 hours.",
      "issuing_authority": "Cisco product security incident response is the responsibility of the Cisco Product Security Incident Response Team (PSIRT). The Cisco PSIRT is a dedicated, global team that manages the receipt, investigation, and public reporting of security vulnerability information that is related to Cisco products and networks. The on-call Cisco PSIRT works 24x7 with Cisco customers, independent security researchers, consultants, industry organizations, and other vendors to identify possible security issues with Cisco products and networks.\r\nMore information can be found in Cisco Security Vulnerability Policy available at https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html",
      "name": "Cisco",
      "namespace": "https://wwww.cisco.com"
    },
    "references": [
      {
        "category": "self",
        "summary": "Cisco Unified Communications Manager IM \u0026 Presence Service Denial of Service Vulnerability",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180815-ucmimps-dos"
      },
      {
        "category": "external",
        "summary": "Cisco Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      },
      {
        "category": "external",
        "summary": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180815-ucmimps-dos",
        "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180815-ucmimps-dos"
      },
      {
        "category": "external",
        "summary": "https://www.cisco.com/c/en/us/products/end-user-license-agreement.html",
        "url": "https://www.cisco.com/c/en/us/products/end-user-license-agreement.html"
      },
      {
        "category": "external",
        "summary": "Cisco Security Advisories and Alerts page",
        "url": "https://www.cisco.com/go/psirt"
      },
      {
        "category": "external",
        "summary": "https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html",
        "url": "https://www.cisco.com/c/en/us/support/web/tsd-cisco-worldwide-contacts.html"
      },
      {
        "category": "external",
        "summary": "Security Vulnerability Policy",
        "url": "https://sec.cloudapps.cisco.com/security/center/resources/security_vulnerability_policy.html"
      }
    ],
    "title": "Cisco Unified Communications Manager IM \u0026 Presence Service Denial of Service Vulnerability",
    "tracking": {
      "current_release_date": "2018-09-04T15:53:00+00:00",
      "generator": {
        "date": "2022-09-03T03:08:30+00:00",
        "engine": {
          "name": "TVCE"
        }
      },
      "id": "cisco-sa-20180815-ucmimps-dos",
      "initial_release_date": "2018-08-15T16:00:00+00:00",
      "revision_history": [
        {
          "date": "2018-08-15T16:06:36+00:00",
          "number": "1.0.0",
          "summary": "Initial public release."
        },
        {
          "date": "2018-09-04T15:53:05+00:00",
          "number": "1.1.0",
          "summary": "Corrected the first fixed release for CUCM IM\u0026P 12.0(1)"
        }
      ],
      "status": "final",
      "version": "1.1.0"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "category": "product_family",
            "name": "Cisco Unified Communications Manager IM and Presence Service",
            "product": {
              "name": "Cisco Unified Communications Manager IM and Presence Service ",
              "product_id": "CSAFPID-189784"
            }
          },
          {
            "category": "product_family",
            "name": "Cisco TelePresence Video Communication Server (VCS) Expressway",
            "product": {
              "name": "Cisco TelePresence Video Communication Server (VCS) Expressway ",
              "product_id": "CSAFPID-209614"
            }
          }
        ],
        "category": "vendor",
        "name": "Cisco"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2018-0409",
      "ids": [
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvg97663"
        },
        {
          "system_name": "Cisco Bug ID",
          "text": "CSCvi55947"
        }
      ],
      "notes": [
        {
          "category": "other",
          "text": "Complete.",
          "title": "Affected Product Comprehensiveness"
        }
      ],
      "product_status": {
        "known_affected": [
          "CSAFPID-189784",
          "CSAFPID-209614"
        ]
      },
      "release_date": "2018-08-15T16:00:00+00:00",
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Cisco has released software updates that address this vulnerability.",
          "product_ids": [
            "CSAFPID-189784",
            "CSAFPID-209614"
          ],
          "url": "https://software.cisco.com"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.0"
          },
          "products": [
            "CSAFPID-189784",
            "CSAFPID-209614"
          ]
        }
      ],
      "title": "Cisco IM \u0026 Presence Service Denial of Service Vulnerability"
    }
  ]
}